Traction-motor.



UNITED sTATEsPArEN'r OFFICE.

JOHN Il. HEVERLING, OF ST. LOUIS, MISSOURI.

TRACTION-MOTOR.

ananas.

To all whom it may concern:

lie it. known that I, JouN Il. llnviiiuaNf-i, u citizen of the United States, residing at St. Louis, Missouri, lia-ve invented a certain new and useful Improvement in Traction- Motors, of which the following is a full', clear, and exact description, suoli as will enable others skilled in the art to which it appertains to make and use the Sallie, reference hengdiad to the accompanying drawings, forming part of this specification, in which Y i Figure 1 is a plan View of a traction motor of iny improvedV construction, the parts being broken away for the purpose of inore clearly illustrating the construction of the motor. Fig. 2 is a side elevation of a traction motor. Fig. 3 is a vertical section taken approximately on the line 3 3 of Fig. 1'. Fig. 4 is a front elevation of the steering wheel of my iniproved traction inotor. YFig. 5 is a detail section taken lengthwisee o'n the counter-shaft of the trac tion inotor and showing the friction clutches thereon. and theiiicans for operating. Fig. I3 is a detail section taken lengthwise on'aA .second coiiiiteisliatt. and showing a pair oi? sprocket wheels on said shaft. and-'the meaiis for ,locking said sprocket wheels to thev shaft. l

M v invention relates to a traction inotoi to he used principally for heai'v haulingr4 'n purposesupmi a roador in the field. The

principal object ot' in \"ini'ention bei-ng to'.

e( nip 'the motor carriage with means ai apted to cngagethe v,eroi-ind as the motor inovcs -forward. 'thuis affordingl ainp'le anchorage and stahilityfor the-traction inotor. and thereby inateri-al-ly increasing,r the draft of' the apparatus particularly-when the saine is' V)assi-ng over coni|iaratively soft ground.

.ly improved traction motor is particularl)r designed for carrying heavy loads and pullin,f r .loaded wagons and Vthe like over roadsI and forpulling."gang.y pl'ows, cultitutors. hai-rows and the like inthe tield.V

*To the alim-'e [nu-poses in i' invention 'cou- Specification of Letters Patent.

Application tiled March 7, 1910.

Patented J une 20, 1911.

serial No. 547,571.

ahle hearings arranged herleath the reni end of the frame l is a rear axle 3 on tho ends of which are l'ixcd traction wheels 4 having the usual wide tires on the outer faces ot which are arranged the usual traction lags o1' projections 5. Formed Von or fixed to the inner face ofeach wheel rim is a series of teeth G forming an internal gear wheel and formed;

'forms the steeringr wheel of the traction motor.

Fixed on the upper end of the shaft ll ,and projecting forwardly therefrom is a lever-114.

Fixedto the forward elid'ol'l this lev'er 14 are the lends of a pair of zahl-es or vchains 15, whichcxtend rearward along.: tlu` Htl sides of the forward portion of the fraaie. 1 i

hearing np'on suitable groovcd pulleys 1G,

' and the rear eiids of these cables or chains are wound u on the lower end of a verti- 'cally disposer steering post 17 which latter' is arranged for rotation in a bearing' 18` located at a point adjacent the central portion of the machine. Arranged on 'the flooring Q :iininedia-tely to the rear Vof this steerf ingpost 171s a seat' 19 for the operator of the traction motor. Positioned on the fioor 2 above the rear axle 3 is a. high poweri'i'iotor 20. preferably of the internal -conibuston type,' and fixed von the engine shaft are .small sprocket'iifheels 21.

designates a' counter-sl-iaft which i:

V joi-irnaled for rotation iu suitable bearnivs' :3 located on the fraaie 1 in front of tio engine, and fixed on thc. ends of this counter. shaft are pinions 2H which nicsh with intern-al gear teeth-1'. Fixed on this shaft. 2Q is a' Vair of disks; 25 on the edgeof which are orined inclined flanges 26. Looselv mounted on the Vshaft 22 immediately adjacent the disks 25 are sprocket wheels QT on the outer faces of each of which is forinod abeveled shoulder 28, which is adapted to engage with the face-of the corresponding inclined fiangeQt. Sprocket lchains 29 conneetV the corresponding pairs of sprocket wheels 21'and 2 Formed inte ral with the inner faces of the sprocket w ieels 27 are grooved hubs 30 and engaging in the grooves in these hubs are flan res 31 formed on the outer ends of a pair o sleeves 32 which sleeves have a pin and slot connection with the frame of the machine, whereby they slide lengthwise upon said shaft only, being prevented from rotation by engagement with the stationary pins on the frame. The inner end of one of these sleeves is provided with a right hand thread, and the adjacent end ofthe opposite sleeve is provided with a left hand thread. The threaded ends of these sleeves are unit-ed by a tubular coupling 33, which is interiorly screw threaded to correspond with the threaded ends of the sleeves'32, and for-mcd on or fixed to said tubular con ling is a vertically disposed handle 34 whic extends upward to the right hand side of the operators seat 19.

35 designates a rectangular frame, which occupies a position beneath the center of the frame of the traction motor, said frame 35 being pivotally carried by the lower .ends of a pair of parallel bars 36, the upper ends of which are pivotally connected to the sides of the frame 1.

Journaled in the sides of the frame 1 adjacent the lower end of the steering post 1T is a rock shaft 37 and fixed on the right hand end thereof is the lower end of a hand lever 3S, which projects upward and rearward to the right of the operators seat 19, Fixed on this rock shaft 37 are links 39 which )roject forward Vand downward and pivotally connected to the lower ends of these links 39 are short links 40, the lower ends of which'are pivotally connected to the sides of the frame 35 at the center thereof. The mechanism just Adescribed provides means for raising and lowering the frame 35 bodily; that is, the enti-re frame may be moved to a position substantially parallel with its operative position.

The frame 35 and parts carried thereby are heldin an elevated osition by means of a latch 'on the hand ever 38 engaging the teeth of a segmental rack 41 xed on the side of the frame 1.

Journalcd in the sides of the frame 35 adjacent the front en d thereof isa transversely disposed shaft 42 upon which is fixed a pair of sprocket wheels 43.

44. designates a shaft or rod which'is transversely disposed in vthe rear portion ofV the frame 35, and loosely mounted upon said shaft or rod is a sleeve 45 the saine being mounted to rotate freely 1n suitable bearings fornied in the sides of said frame 35. Fixed to this sleeve 45 just inside the side members of the frame 35 are s rocket wheels 46 which are in alnernent wit the sprocket wheels 43. Fixed on the sleeve 45 outside the frame 35 are collars 47 and loosely attached to the corresponding mounted on said sleeve outside these collars are sprocket wheels 4B which are in alinement with the sprocket wheels 7 on the hubs of the traction wheels 4, and connecting'the corresponding pairs of sprocket wheels 7 and 48 are sprocket chains 49.

Loosely mounted on Vthe sleeve 45 outside the sprocket wheels 48 are collars 50. The right hand end of the rod 44 pro'ects a short distance beyond the correspon lng end of the sleeve 45 and said projecting end is ex teriorly screw threaded, and mounted on this threaded end of said rod is a nut 51 from which projects a vertically1 disposed handle 52. The opposite end of t e rod 44 projects a short distance beyond the corresponding end of the sleeve 45, and fixed on said projecting end is a head 53, which normally hears against the correspondin collar 50. The end of the rod 44 which projects beyond the head just described is made square or non-circular, as designated by 54, and said non-circular portion is seated in a bracket side of the frame 35. When the nut 51 is rotated by means of the handle 52, thecollars 50 will he drawn toward one another and as a result the sprocket wheels 48 will be clamped between said collars and the fixed collars 47, and thus said sprocket wheels will rotate with the sleeve A5.

Connecting the corresponding pairs of sprocket wheels 43 and 46 are heavv s rocket chains-56,' and fixed to'certain'of t e engths thereof and arra-n ed at e ual distances apart are transverse ydispose plates 57, the outer ed es of which are sharpened, thus fo iing A lades which are adapted to engage in t 1e ground over which the traction motor is passing, thus giving said traction motor firm anchora e and stability while the same is pulling a cavy load.

Fixed on the rear end of the-framed. of the machine is a transversely disposed bar 58 in .which is formed a row of apertures 59, 'thi-1s roviding means for attaching chains, cab es or hooks and like connections which lead to the wagons or farming im'- plements drawn by the traction motor.-

Daling operation therotary motion of the engine shaft mounted sprocket wheels 27 by means of the chains 29 connecting the s rocket wheels 21 and said sprocket whee s 27,.'thus said sprocket wheels 27 arev driven continuousel by the engine. To lock these sprocket whe on the shaft 22, and to impart motion to the latter the operator manually engages the lever 34 and-by shifting the same partially rotates the tubular coupling 33, thereby moving the sleeves 32 outward and forcing the beveled shoulders 2S cn the sprocket wheels `27 -into frictional enga ement with the inclined flanges 26 on the r isks 25. As soon as these parts are locked toV one-another is imparted to the A'loosely through frictional engagement the "collatershaft 22`will be rotated and the pinions 24 fixed on the ends of said counter-shaft will engage with the teeth 6 forming the circular racks on the traction Wheels 4, and thus said traction wheels will be driven, and the traction motor will move forward. operator occupies the seat 19 and by proper manipulation of the steering l ost 17 lswings the Wheel 13 to one side or t e other thereby guidingl the forward movement of the traction motor;

llhere the traction motor is used Vi501' conveying material from one point to another said material is loaded onto the flooring or platform 2 il'mncdiately in front of the steering post` l, and when vthe `traction sleeve `45, through the medium of `the motor is used for pulling loaded Wagons gang plows, cultivators and the like said wagons or plowsarc attached by chains or cables to the bar 58. .4 f t lhere m. improved traction motor is beingnsed tor comparatively light orordi-v nary Work, and is being operated on a `fairly good roadway Oron comparatively' hard ground Vthe traction element comprising t the sprocket chains y56. and transverse blades `57 is, not needed, and while not in use occu ies an elevated position as seenin Fig. 3L 'W ien the niotoris utilized for pulling heavy loads or whiletraversing soft ground the pullinfr element is lowered by releasing thelatci on the handle lever 3S fronrthe toothed segment' 4l, and when this latch is yutilized the frame 35 yand parts carried thereby will result the loosely mounted collars are forced against "the hubsot the sprocket wheels 48,

,and said hubsare clampedbetween said col vlars 50. and the collars 4T which rare' fixed on'the sleeve 45.- thus the rotary motiono the traction wheels 44 is imparted to the sprocket chains 49 operating on the sprocket wheels 7, andthe sprocket vwheels 48, whichlatter are asheretofore described, clamped upon said sleeve 45. '.Asfthe sleeve 45 is ro'- tated the endless chains 56 will be! operated and consequently the `blades 57'Wll engage in the ground overwhich the tractionY motor is passing. The. blades 57 being-thus emi bedded in the groundprovide very substantial anchorage for the `motoraand the full y strength `or pmver of the'engine can be utilized for moving the traction motor forward and pulling the load. n f Y The This action tends to move the rod 44 toward the nut 51, vand as kA traction motor of improved construction is very simple, is easilyl operated.y

and provides means whereby heavy loads y speed and the frame 35 is lowered to permit Y t` 1 e blades 57 to engage inthe ground the maximum power exerted b'y theengine is utilized -for pulling the impllaments attached to the traction motor. t

Bymy improved construction, Iam able to roduce a machine of comparativel `light Weight, which `has great traction an pull-` ing power, and this is a decided advantage over the prevailing typesvoftraction engines, inasmuch as in said prevailing types a comy paratively large. per cent. of the power developed by the engine is consumed in niovingfthe Weight of. the carriage, thereby leaving asmall percentage ofpower t0 do theactual Work of pulling. Such objection is entirely v overcome in a. majchineconstructed as herein shown and videscribed, A i

Iclaim: j., l

l. The combination4v with a carriage, a' driving device therefor, of a framesupported'in a substantially horizontalpposition beneathqthe carriage, a pair of shafts supi ported bythe framef sprocket Wheels ar` ranged thereon, chains operating.l on said sprocket wheels, plates fixed to said-chains, 'and means on the carria e ada ted to move the frame bodily to -a lsu stantlally' parallel t position. v y

2.` The combination with a motor. driven carriage, of 'a frame, supported beneath the carriage, parallel links connected to the carringe and to each `end of the frame, a pair of endless chains arranged for operetwion in said frame, and projections'on, said chains which are adapted lto enter thc ground over Which thecarriage is passingQ 3. Th combination with' a motor driven carriage, of'a frame supported beneath the carriage, parallel links connected to the car f riage and'to each end of the frame, and a lever connected to* the centerjof theft-ame t adapted tomoveit vert-icallypapairofendv less chains arranglgfedl 'for `operation?in'ysaid p frame, and projections on saidchainsadaptedtozengage the `ground k over'Which' the car riage islpasslng.'y i y y4. The/combination Witha motordriven carriage having an.y axle withlvvheels there# on, a. frame beneath thev oarriage,means couneeting4 said carriage and 1frame,whereby the frameA maybe bodily moved verticalliy to parallel positions, a'pair of endless chains mounted on said frame having `means thereon adapted to engage theground `ov'erfvvhich 4 the carriage passesand drivingmeans connectlng sald axlcxwith the chains.

' tending' through theshaft, and means conv 10' driven means.

the motoren the carrie e to said 5,l The combination witha motor driven cai-ria e, of un endlesspulling element vsup*- porte l13oengage with the round over which the carriage is passing, rivin'g connection fromullng element, com rising a hoflovv shaftv aving driving and riven means thereon, a rod ex nected tothe rod to clamp the driving to the 6. The. combination with av carriage, a motor for Vdriving said .'cnriiage, drlvng connections fromthe Amotor .to said' carriage comprising a shaft, driving devices mounted,

beneath the carriage'v and adapted.

oir-said shaft, 'gear wheels loosely'mounted on saidl shaft adjacent each drivmg deviee sleeves connected with sai'f' ear Wheels;` an

mounted -u on saicl shaft, said sleevesbeing ieversely t readed, and alever adapted to v20- i y engage the threads of each s1eeve to engage each gear with its adjacent drvmg device. on the shaft. ,o

Intestim'ony whereof I hereunto aix my sonature in the lpresenceof two witnesses, 2lik ehsznd day of March, 1910.

JOHN B. HEVERLING. Witnesses:

vM1.`P..SM ITH, V-

ALMA` GEBHART.

Copies o! this patent mvay 4b e obtained for ve cents eac'hLby addressing-the ommissioner of Patents.

washington; n. c. 

